Staff at Raigmore Hospital in Inverness have reported two new cases of coronavirus on Ward 2C, which was closed last week following an outbreak.
The ward was initially closed on Saturday after a “very small number of cases” were detected there, and updates from NHS Highland on Sunday and Monday said no further cases had been identified.
However, the health board says a pair of new cases has been identified since Monday.
None of the people affected are giving any immediate cause for concern, it added.
The ward will remain shut to new admissions and visitors, and a new update on the situation at Raigmore is due to be released on Friday afternoon.
NHS Highland wrote in a statement: “We would like to take this opportunity to remind everyone they should continue to adhere to physical distancing guidelines, wear a face-covering when in enclosed spaces, clean your hands and surfaces regularly and immediately self-isolate and book a test if you develop symptoms.”